568-444 HSN90 DURO ORINGS

HSN90444 is an AS568-444 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring measuring an inside diameter of 7.725 in (196.22 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.275 in (210.19 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

HNBR (Hydrogenated Nitrile) is specified here for improved ozone and weathering resistance over standard nitrile, long service life in refrigerant and oilfield duty. It resists petroleum oils and fuels, modern refrigerants, and heat and oxidation. Published continuous service range is -40°F (-40°C) to 325°F (162.8°C).

Typical settings include heavy-duty powertrain, automotive air conditioning, and oilfield and downhole equipment.

This item is sold individually under part number HSN90444. As always, verify media compatibility and operating conditions against the requirements of your specific application.